Glass-delivering apparatus



Nov. 12, 1929.

D. STENHOUSE GLAS'S DELIVERING APPARATUS Filed July 23, 1924 which the glass, as

Patented Nov. 12,1929

v DAVID -S'.I.ENHOU8E,- OF WASHINGTON,

PENNSYLVANIA, GLASS (70., 0E WKEELING, WEST VIRGINIA, A CORPORATION OF sssrenon 'ro HAZEL-Arms wns'r vmemm GLASS-DELIVERING APPARATUS J Application filed July 28, 1924. Serial'No. 727,734.

The invention relates generally to a means for delivering glass to machines for the manufacture of glass articles, and more particularly'the invention relates to a means by delivered to the forming apparatus, will be of uniform temperature.

, rocable plunger is Another object of the invention is to operate the usual plunger in such a manner that the plunger itself will always have a uniform temperature.

The common forming machines glass to flow. from spout, which is provided with an orifice in its bottom through which the the forming machines. A vertically recipmounted in the flow spout in alignment with the flow orifice, and as the plunger reciprocates parisons or gobs of glass of measured quantities are intermittently fed to the forming devices in manner. This is the usual methodof deliverpractice of feeding glass .to consists in allowlng the ing glass which has been well known and 1 urable percentage of he cooler glass flows with each char e or articles are subjects to years. This method of delivering g1 which has been in general practice for man ass 1s subject to certain disadvantages. ,As the glass flows from the furnace through the flow spoutto the {flow orifice it channel of hot lass and the glass farthest removed from t stagnantv and is comparatively cool. s cooler glass does not jiowus readily as the hotter and more fluid glass, and yet a mea gob of hot glass, and consequentl w on the plunger is recipro- .cated a c arge of unequal temperature throughout is delivered. j

Further, the reciprocable plunger is arranged in the channel and the result is" that the side of the plunger iacingthe hot stream is heated to a higher temperature than its opposite, side and this also tends to give an uneven temperature to the delivered charges.

The efiect of acharge having these characteristics is not ve appreciable where the pressing alone in the process of manufacture, as the pressing longer the furnace to the flow glass flows to the well known 7 forms a naturale channel tends to remain the usual and yvell of hot flowing glass,

and mold'are sufficiently rigid to the pressing plunger and the interior. of the mold.

But in the case of any lack of uniformity de ivered charge ro uces a very deleterious effect on the finis the difference in temperature in the pressed blank, even though it is pressed to uniform thickness, causes diflerentparts of the blank to ofier different resistance to the distending pressed and blown ware influence of the air which is admitted to the interior of the blank under pressure, and consequently the wall of the is of var ing thickness.

The 0 ject of the present and I will now proceed to describe the apparatus by which the prior practice are entirelyeliminated; reference being had to the accompanying drawings in which,

Figure 1 is an pleteapparatus; the flow spout being shown in transverse section; and, p v L Figure 2 is a horizontal sectional view of the apparatus, taken online Referring to the drawings more in detail, the flow spout, indicated by numeral 1, rojects from a glass furnace (not shown in known manner. The flow pout is provifijed 2, and removable bushin 3, through which flows the molten glass inbicated by numeral 4. All of thesev parts are in common use m the glass art and form no part of the present invention, and consequently the foregoing brief descfiption will suflice.

Referrin now to 5 indicates afcylinder which is carried by a bracket 6 clamped on a-column'? and supformed integral with the Y vention is in noway limitedtothe particular mounting of the column,- and it is obvious that the cylinder could be mountedindependof temperature of the ed ware This is because the objectionable featuresof with the usual flow orifice that part of the apparatus in which the inventionresides, numeral 1' finished article invention is to overcome the disadvantages mentioned above,

elevational view of the comd 2--2 of Figure -1.

' y r e col mn if 'd sire i a dl he par? f ti'cular' structure described is therefore to be considered in an illustrative rather than in a limiting sense.

Cylinder 5 is provided with a piston rod which is'operated by the admission and exhaust of fluid, pressure to opposite ends of the cylinder; the admission and exhaust of l the fluidpressure being synchronous with the operation'of the valves of a glass blowing or pressing machine in any conventional manner, Such valve operating means are well known, and as an understanding thereof is. not necessary to an under'standin of the present invention, it has been deeme advisale not to illustrate the same.

A support 11 is provided ,on the lower end of the piston rod, and this support functions as a ball-bearing race for the ball-bearings 12. Numeral 13 indicates a rotatable rod .provided with a sleeve 14 at its upper end which'fits over the ball-bearings 12, thereby anti-frictionally supporting the rotatable rod 13. This rod passes downwardly through a v bracket 15 clamped to the column 7.

Mounted on the lower end of .the rotatable rod is the usual plug or plunger 16. Theplug may be attached to the rod in a great variet' of .ways, but I have devised an. ex-

' treme y simple device by which the plugs may be mounted and removed with the'greatest ease and rapidity. A'V-shaped socket "mem- 'ber 17 is attached to or formed integral with the lower end of the rod 13, and a pin 18-i3 adapted to project through this socket memsary to place'the plug on the pin 18 and move shaped, but it will be understood that the clamp 19 to operative position. v The socket member 17 has been described .as :L tie socekt may be of any shape desired.

Thus-far I have described'the means by which the lug is reciprocated, and the means bywhich t e plug is attached to the reciprocable member, a-nd I shall now describe the meansby which the plug is rotated while it is being reciprocated.

- The bracket 15, hereinbefore mentioned, has an extension shelf 21, on which is mounted the motor 22. The motor shaft 23 carries a worm 24 which engages and-drives the 'worm wheel 25 keyed to the shaft 26. This shaft extends through bearings 27, 28 and hasa worm 29 mounted on the end thereof, which engages with' and drives aworm wheel 30. The worm wheel 30 is provided with a key 31 slidably mounted in the .keyway 32 in the rotatablerod 13, the worm wheel being held against reciprocabl'e"movement by meansof the fork 15 on the bracket 15. The rod 13 is thus free to be reciprocated by'the cylinder,

and at the same time the rod is continuously rotated by means of its sliding engagement with the worm wheel 30.

The operation of the apparatus will now be briefly described. i

a As the plunger 16 descendsthe glass will flow through the flow hole and at the proper moment the stream will be sheared and the severed glass gob will be delivered to an intermittent or continuously rotating glass machine'such asare used for pressing, pressing and blowing, or blowing. I m

As the plunger ascends the unsevered po'rtion'of glass adhering. thereto is drawn up into the mass of glass in the flow spout, and

as it is drawn upwardlyinto the mass it is caused to rotate by the continuous rotation of the plug; and as a result of this-rotation the unsevered portion is more intimately 'mixedwith the glass mass in the flow spout thereby producing a uniform temperature.

Further, as hereinbefore stated, the flowing glass in the flow spoutjormsa natural channel of hot glass, while the glass farthest removed from the channel is relatively cool,

and because it/is coolerit is less fluid and tends to stagnate, andthis tendency to stagnate is further increased by the glass'adhering to .the walls'of'the flow spout. -A por-[ tion of this cooler glass mixed vwith the hot glass in the channel, and consequently in the v former use of the simple reciprocating plug the delivered charges were not of (uniform temperature. By the use of the: reciprocating and rotating plug disclosed herein this lack of-uniformity of temperature is wholly eliminated, for as the plug rotates the glass adheres thereto and consequently the glass is drawn from the channel and from the cooler sides and is throughly mixed into a mass of uniform temperature before it is" discharged. A

Further, by the continuous 'f-otation .of the plug, the plug itself is maintained at a uniform temperature, for all parts of the plug are presented successively to the parts of the glass mass having different temperatures, f

While in the former practice with a simple reciprocating plug, one side of the plug would always be presented to the hotter portion of glass, and the other side would always be presented to the cooler portion of glass.

'A bracket 33 is slidably mounted on the column 7, and the outer end of said bracket embraces the piston rod 10; and obviously by vertically adjusting the bracket the upper limit of the plunger stroke is varied. The vertical adjustment of the bracket is accom-- plished by means of a vertical adjusting rod 34 which -'screwthreadedly engages the bracket as indicated by numeral 35, and which i is operated by means of a handwheel 36'. The adjusting rod 34, and bracket 33 carried there;

by, are supoprted by means of collars 37, 37, attached to the .rod 34 and arranged above and below another bracket 38. The outer end of the bracket 38 embraces the rotary-reciprocating rod 13, below the sleeve 14, and hence this bracket functions to control the lower limit of the plunger 16.

The bracket 38 is slidably mounted on the column 7, and is vertically adjustable thereon by means of an adjusting rod 39 screw-threadedly engaging the bracket as indicated by numeral 40, and which is operated by means of a hand wheel 41.- The adjusting rod 39 is supported by means of a collar 42 which rests on a lug '43 secured to the nose casing.

As the bracket 33 is sup orted by the bracket 38, due to the collars 3 engaging the latter bracket, and as the bracket 38 is supported by means of the collar 42 resting on the nose casing lug 43, it is apparent that any movement given to the hand wheel 41 will either raise or lower the brackets 33 and 38 simultaneously and to the same amount, an hence the upper plunger stroke will be varied, but the length of the plunger stroke will remain the same. If, however, it is of the plunger stroke, the'hand wheel 36 on the rod 34 may be operated as required to 8 either raise or lower the bracket 33 relative to the bracket 38, thus either increasing or decreasing the length increasing or decreasing the vertical movement of the rotary-reciprocating rod 1:3 in

35 the space between the brackets 33 and 38.

In accordance with the patent statutes, have'des'cribed what I now believe to be the best embodiment of the invention, but I do not wish to be understood thereby as limiting myself or the scope of the invention, as many changes and modifications may be made without departing from the spirit of the invention; all such I aim to include in the scope Qof the appended claims.

Having fully described the invention, what I claim as new and desire tofsecure by Letters Patent is:

1. An'apparatus eluding a flow spout having a flow orifice, a

59 reciprocable plunger in vertical alignment with the flow orifice, a piston and piston rod for operating the plunger vertical alignment therewith, a rotary rod carried by the piston rod, said plunger attached to therotary rod, a worm wheel keyed to said rotaryrod and having slidin movement thereon, a worm engaging sai "worm. wheel and an electric motor for oper- 1 ating said worm.

2. An apparatus for delivering glass, in-

cluding a reciprocable plunger, a cylinder e and piston rod for operating the plunger, a sleeve forming a shoulder arranged between the plunger and its .operating c linder, and

ian adjustable bracket arrange above the below the sleeve,

1 independently. and lower limits of the.

desired to vary the length of the plunger stroke by I eluding a plunger,

' bracket for adjusting it indepen for delivering glass, in- I and arranged in edly engaging sleeve and an adjustablebracket arranged for varying the upper and lower limits of the plunger stroke.

3. An apparatus for delivering glass, in. cluding a reciprocable plunger, a cylinder and piston rodfor operating the plunger, a rotary rod having a sleeve forming a shoulder mounted for rotary movement on the piston rod, said plunger carrie an adjustable bracket arranged above the shoulder and an adjustable bracket arranged below said shoulder, to vary the limits of the plunger stroke, and means ,for rotating said plunger. 1

4. An apparatus for delivering glass, incluling a reciprocable plunger, a, cylinder an d bysaid rotary rod,

pistonrod for operating the plunger, a

cylinder, an adjustable bracket arranged above the shoulder and an adjustable bracket arranged below the shoulder, adjusting said brackets 5. An apparatus for delivering glass, including a reciprocable plunger, a cylinder and piston rod foroperating the plunger, a.

and means for. s multaneously or rotary rod having a sleeve forming a shoulder mounted'for rotary movement on the piston rod, said plunger mounted on' said rotary rod, means for rotating said ro'd, a bracket arranged below said shoulder, and means for adjustin said brackets simultaneously or indepen ently.

6. An apparatus for delivering glass, in-

a' cylinder and piston rod for reciprocating the plunger,- means for rotatingthe plunger, a shoulder arranged between the plunger and its operating cylinder, a bracket arranged above the shoulder and 'a bracket arrange a rod screwthreadedly engaging the upper ently of the lower bracket, and a rod 'screw-threadedly engaging the lower bracket for adjusting the two brackets simultaneously. I 7. An apparatus for delivering glass, including a plunger, a cylinder and piston rod for reciprocating the plunger, eans for rotating the lunger, a shoulder arranged between'the p unger and its operating-cylinder, a column, brackets adjustablymounted on said column and arranged above and below said shoulder, an adj usting rod screw thread the upper bracket, said ad 'usting rod being supported by the lower racket, and an adjusting rod screw-threadedly engaging the lower bracket, whereby the. brackets may independently; I

8. An apparatus for delivering eluding a reciprocable plun er an mounting said plunger, sai ing a socket member, said socket member and plunger having registering apertures, a pin glass, in-

be adjusted simultaneously or means forv 7 means compris- 95 arranged above the shoulderand 'a bracket the opposite side ofthe' plunger.

' adapted to be inserted in the registering apertures', and a movable clamp adapted to engage plunger adapted to be hung on said pin, and

a movable clamp adapted to engage the side. of the plunger opposite to the-socket member. a 11. An apparatus for delivering glass including a reeiprocable plunger, two elements for limiting the up anddown stroke of the plunger, an adjustable connection between the two elements, and 'a screw-threaded rod engaging one of said elements for simultaneously adjusting-"the "two elements.

12. An apparatus for delivering glass ineluding a reciproeable plunger, a column, two brackets slidably mounted 'on' said column and limiting theplunger stroke, an adjusting rod serew-threadedly engaging one of said brackets and supported by the other bracket,

and an adjusting rod screw-threadedly eonneeted with said other bracket.

13. An apparatus for delivering glass ineluding a rcviproeable plunger, a cylinder and piston arranged in vertical alignmentwith the plunger and operatively connected cylinder for reciprocating said plunger, a

pair of arms which pro ect into vertical alignment with the plunger to limit the stroke thereof, and means for adjusting said arms vertically, either simultaneously or inde- 18. A glass feeder including a plunger, a cylinder for reciprocating said plunger, a pair of arms which project into vertical alignment with the plunger, and means formoving said arms slmultaneously the same distance in the same direction or moving said arms relatively. DAVID STENHOUSE.

therewith, means for rotating said plunger,

stop members for varying the limits of the plunger stroke, and an ad ustable connection between said members". I fi l. An. apparatus for delivering glass inluding a reciprocable plunger, a cylinder and piston arranged in vertical alignment with the plunger and operatively connected therewith, means for rotating the plunger, stop members for varying the limits of the plunger stroke, and means for simultaneously adjusting saidstop members.

15 ;An apparatus for delivering glass including'a reclprocable plunger, a cylinder andpiston arranged in vertical alignment with the plunger and operativelyconnected therewith, means for rotating the plunger,

I stop members for varying the limits of the plunger stroke, means for simultanenously adjusting said stop members, and means for independently adjusting one of said .stop members. 1

- 16. A glass feeder including a plunger, a cylinder for reciprocating said plunger, a pair of arms which project .into vertical alignment with the lunger to limit the stroke thereof, and means; or simultaneously adj ustf ing said arms vertically- 17. A glass feeder including a plunger, a Y 

